source (L2TPv3-PW view)

Function

The source command configures the source interface of an L2TPv3 tunnel.

The undo source command deletes the source interface of an L2TPv3 tunnel.

By default, no source interface is configured for an L2TPv3 tunnel.

Format

source interface { interface-type interface-number | interface-name } { ipv6 ipv6-address | ipv4-address }

undo source [ interface { interface-type interface-number | interface-name } { ipv6 ipv6-address | ipv4-address } ]

Parameters

Parameter	Description	Value
ipv6 ipv6-address	Specifies the source IPv6 address.	The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X.
ipv4-address	Specifies the source IPv4 address.	The value is in dotted decimal notation.
interface interface-type interface-number	Specifies the source interface of an L2TPv3 tunnel.	The source interface can be a physical interface, a Layer 3 sub-interface, or a loopback interface.

Parameter

Description

Value

ipv6 ipv6-address

Specifies the source IPv6 address.

The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X.

ipv4-address

Specifies the source IPv4 address.

The value is in dotted decimal notation.

interface interface-type interface-number

Specifies the source interface of an L2TPv3 tunnel.

The source interface can be a physical interface, a Layer 3 sub-interface, or a loopback interface.

Views

L2TPv3-PW view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
l2tpv3	write

Usage Guidelines

Usage Scenario

L2TPv3 uses unique source or destination IPv6 addresses to identify tunnels. To configure a source interface for an L2TPv3 tunnel, run the source command. The source interface of an L2TPv3 tunnel uses its configured IPv6/IPv4 address as its source IP address. If the source interface is a loopback address, the source interface can use as its source IP address an IP address that belongs to the same network segment as its configured IPv6/IPv4 address.

A source interface can be a loopback interface or Ethernet interface.

Prerequisites

L2TPv3 has been enabled using the l2tpv3 enable command.

An L2TPv3 tunnel has been configured using the l2tpv3 pw command.

Precautions

If an L2TPv3 tunnel has been bound to an AC interface, no source interface can be configured for the L2TPv3 tunnel.

The source address of an L2TPv3 PW is either an IPv6 or IPv4 address. An IPv6 address and an IPv4 address cannot be used together for an L2TPv3 PW.

Example

# Configure LoopBack1 as the IPv4 source interface.

<HUAWEI> system-view
[~HUAWEI] interface loopback 1
[*HUAWEI-LoopBack1] ip address 3.3.3.3 24
[*HUAWEI-LoopBack1] quit
[*HUAWEI] l2tpv3 enable
[*HUAWEI] l2tpv3 pw huawei
[*HUAWEI-l2tpv3-pw-huawei] source interface LoopBack 1 3.3.3.3

# Configure LoopBack1 as the IPv6 source interface.

<HUAWEI> system-view
[~HUAWEI] interface loopback 1
[*HUAWEI-LoopBack1] ipv6 enable
[*HUAWEI-LoopBack1] ipv6 address 2001:db08:1::1 64
[*HUAWEI-LoopBack1] quit
[*HUAWEI] l2tpv3 enable
[*HUAWEI] l2tpv3 pw huawei
[*HUAWEI-l2tpv3-pw-huawei] source interface LoopBack 1 ipv6 2001:db08:1::1